Our acid-free Aged Oak Brown matboards are 4-ply and feature a white core. With an overall size of 9x12, these mats with Oval openings fit perfectly into 9x12 frames and are bevel cut to showcase your 7x10 photos. Actual mat opening size is 6.5x9.5 inches so that it may safely and securely house your 7x10 photo, artwork, needlepoint, sign, etc. This pack includes 1 Single Matboard. Proudly made in the USA by Country Art House!